Struct BackdropBlur 

pub struct BackdropBlur { /* private fields */ }

The GPU half of the material: renders, blurs and substitutes each region’s backdrop on one device. Built once per renderer.

Implementations

impl BackdropBlur

pub fn new(device: &Device) -> BackdropBlur

pub fn prepare( &mut self, device: &Device, queue: &Queue, renderer: &mut Renderer, frame: &BackdropFrame, target: (u32, u32), base: AlphaColor<Srgb>, ) -> BackdropStats

Render, blur and substitute every region of frame on renderer, whose next render draws a target-sized frame cleared to base. A region that cannot be prepared keeps its opaque placeholder. Call Self::release once that render is submitted.

pub fn release(&mut self, renderer: &mut Renderer)

Drop the substitutions of the last Self::prepare, so later renders on renderer draw the opaque placeholders again.